Year	% of GDP
1960	25.6563245823389
1961	20.439711439367912
1962	19.356944671127795
1963	20.75741801145237
1964	20.495908147062416
1965	22.861878453038674
1966	22.051335342408812
1967	18.817865191559108
1968	19.89210397253556
1969	23.79211980745231
1970	21.743173556513653
1971	22.18448475492088
1972	20.175808720112517
1973	29.274154782887358
1974	28.72517280601977
1975	23.831273508866204
1976	32.29125867901015
1977	31.3543599257885
1978	32.23354273346355
1979	37.78864380492848
1980	32.9237637877992
1981	28.802527207401106
1982	28.601095864151183
1983	32.60888081312816
1984	35.46825895663105
1985	32.71330837743643
1986	32.08090063413135
1987	36.951347351544676
1988	36.5681498321966
1989	35.93549551946633
1990	34.403473266096185
1991	34.13087238388443
1992	36.71905071607757
1993	39.0838240589103
1994	39.59869232225354
1995	39.705042859133464
1996	42.86412435167815
1997	43.8868681133448
1998	48.67022309465724
1999	47.43386841510287
2000	46.080398203147574
2001	41.83828305145797
2002	42.031976994517414
2003	42.45514830371876
2004	43.42218509518023
2005	44.33991073958107
2006	44.49733907075257
2007	43.280578350918326
2008	43.789004206772134
2009	38.11030823853873
2010	39.30224461125301
2011	38.761347894613884
2012	36.50669445210924
2013	34.47409911899895
2014	34.25237450099101
2015	32.951572541066994
2016	32.64739288220212
2017	32.41565509675661
2018	30.604737298122004
2019	28.575212052253708
2020	26.025697530888163
2021	29.33597694613892
2022	30.742690914127778
2023	27.522361819898894